51943953 has 16 divisors (see below), whose sum is σ = 70862400. Its totient is φ = 33836544.

The previous prime is 51943951. The next prime is 51943963. The reversal of 51943953 is 35934915.

It is not a de Polignac number, because 51943953 - 2¹ = 51943951 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51943951) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23698 + ... + 25796.

It is an arithmetic number, because the mean of its divisors is an integer number (4428900).

Almost surely, 2^51943953 is an apocalyptic number.

It is an amenable number.

51943953 is a deficient number, since it is larger than the sum of its proper divisors (18918447).

51943953 is a wasteful number, since it uses less digits than its factorization.

51943953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2288.

The product of its digits is 72900, while the sum is 39.

The square root of 51943953 is about 7207.2153429740. The cubic root of 51943953 is about 373.1169674401.

The spelling of 51943953 in words is "fifty-one million, nine hundred forty-three thousand, nine hundred fifty-three".